it's not really the power of the "Sharingan vs Byakugan", the Byakugan is one aspect of Kaguya's power and the same can be said about Sasuke and his Sharingan so the title is odd in my opinion (this fight is not only a Byakugan vs a Sharingan/much much more).
the OVERALL power of Kaguya should be more than enough to crush Sasuke.